Currently the only way to know if there was an issue is by searching on the shipment tab under "Warnings".

This creates a LARGE issue, we use Magneto 2. If there is an error and does not communicate that means we also do not collect funds for that order unless the issue is caught before the carrier picks up.

It would be ideal if a pop up would show up immediately after so our shipping department can set that order aside and notify our customer service team that we need to investigate. It seems a lot of these happen if a payment does not go through.